One day on the way home, she finds her close friend Junsan, who has missed the last train and is drunk. Taking care of her, they end up at a hotel... "Can you stay with me a little longer?" Junsan leans on her, even though she knows it's wrong. With her sweet voice and the warmth she feels, her reason is completely defeated. After being begged, she ends up having unprotected sex... All night long, they engage in activities like oral sex, handjob, cum on tongue, riding position with internal ejaculation, and finally, multiple rounds of unprotected sex next to her while she sleeps...